<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="../js/utils.js"></script>
    <script src="../js/animate02.js"></script>
    <style>
        #box {
            position: absolute;
            left: 100px;
            top: 100px;
            width: 100px;
            height: 100px;
            background-color: red;
        }
    </style>
</head>
<body>
    <div id="box"></div>
    <button>开始</button>
    <script>
        var oBox = document.querySelector('#box');
        var oBtn = document.querySelector('button');

        oBtn.onclick = function(){
            animate(oBox, 'left', 1000, 4000);
        }
    </script>
</body>
</html>